New
#1
splash screen
how can I use the splash screen as background
Find an image of it online, download it, set it as your wallpaper. It's an embedded image in one of the system files, as far as I know.
That is one way to do it, I still think a Google search is likely easier and faster though? https://www.google.ca/search?q=windo...Ha6LBg8QsAQIIg
This one? http://www.techrepublic.com/pictures...m-101-to-7/30/
(courtesy of @alphanumeric's Google search) Click on it to get the image on its own.
Ore did you really mean the lock screen image? They're in %systemroot%\Web\Screen